EP0167505A3 - Method and apparatus for level measurement with microwaves - Google Patents

Method and apparatus for level measurement with microwaves Download PDF

Info

Publication number
EP0167505A3
EP0167505A3 EP85850183A EP85850183A EP0167505A3 EP 0167505 A3 EP0167505 A3 EP 0167505A3 EP 85850183 A EP85850183 A EP 85850183A EP 85850183 A EP85850183 A EP 85850183A EP 0167505 A3 EP0167505 A3 EP 0167505A3
Authority
EP
European Patent Office
Prior art keywords
microwaves
level measurement
measurement
level
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85850183A
Other versions
EP0167505B1 (en
EP0167505A2 (en
Inventor
Kurt Olov Edvardsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rosemount Tank Radar AB
Original Assignee
Saab Marine Electronics AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saab Marine Electronics AB filed Critical Saab Marine Electronics AB
Publication of EP0167505A2 publication Critical patent/EP0167505A2/en
Publication of EP0167505A3 publication Critical patent/EP0167505A3/en
Application granted granted Critical
Publication of EP0167505B1 publication Critical patent/EP0167505B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Thermal Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
EP85850183A 1984-06-01 1985-05-23 Method and apparatus for level measurement with microwaves Expired - Lifetime EP0167505B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8402960A SE456538B (en) 1984-06-01 1984-06-01 SET AND DEVICE FOR NIVAMATING WITH MICROVAGOR
SE8402960 1984-06-01

Publications (3)

Publication Number Publication Date
EP0167505A2 EP0167505A2 (en) 1986-01-08
EP0167505A3 true EP0167505A3 (en) 1987-08-26
EP0167505B1 EP0167505B1 (en) 1990-01-31

Family

ID=20356101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85850183A Expired - Lifetime EP0167505B1 (en) 1984-06-01 1985-05-23 Method and apparatus for level measurement with microwaves

Country Status (15)

Country Link
US (1) US4665403A (en)
EP (1) EP0167505B1 (en)
JP (1) JPS60262080A (en)
KR (1) KR900004883B1 (en)
AU (1) AU569158B2 (en)
BR (1) BR8502625A (en)
DE (1) DE3575782D1 (en)
DK (1) DK161261C (en)
ES (1) ES8608177A1 (en)
FI (1) FI80961C (en)
IN (1) IN164799B (en)
MX (1) MX158486A (en)
NO (1) NO166345C (en)
SE (1) SE456538B (en)
YU (1) YU46256B (en)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4737791A (en) * 1986-02-19 1988-04-12 Idea, Incorporated Radar tank gauge
EP0261860B1 (en) * 1986-09-24 1992-12-16 Cannonbear Inc. Sensor and method for ullage level and flow detection
JPH0616081B2 (en) * 1988-10-06 1994-03-02 日本鋼管株式会社 Distance measuring device
SE466519B (en) * 1989-04-10 1992-02-24 Saab Marine Electronics DEVICE FOR Saturation of the level of a fluid present in a container
WO1992014124A1 (en) * 1991-02-12 1992-08-20 Krohne Messtechnik Gmbh & Co. Kg Electric circuit for a device for measuring the level in industrial tanks and the like
US5233352A (en) * 1992-05-08 1993-08-03 Cournane Thomas C Level measurement using autocorrelation
DE4233324C2 (en) * 1992-10-05 1996-02-01 Krohne Messtechnik Kg Process for measuring the level of a liquid in a container according to the radar principle
DE4240491C2 (en) * 1992-12-02 1996-10-31 Grieshaber Vega Kg Device for measuring the transit time, in particular distance measurement
DE4241910C2 (en) * 1992-12-11 1996-08-01 Endress Hauser Gmbh Co Level measuring device working with microwaves
US5321408A (en) * 1992-12-31 1994-06-14 Baker Hughes Incorporated Microwave apparatus and method for ullage measurement of agitated fluids by spectral averaging
SE501472C2 (en) * 1993-02-03 1995-02-27 Stiftelsen Metallurg Forsk Ways of measuring the positions of surfaces between different layers in metallurgical processes
DE4345242A1 (en) * 1993-09-15 1995-04-06 Endress Hauser Gmbh Co Frequency conversion circuit for a radar distance measuring device
US5406842A (en) * 1993-10-07 1995-04-18 Motorola, Inc. Method and apparatus for material level measurement using stepped frequency microwave signals
US5440310A (en) * 1994-02-14 1995-08-08 Motorola, Inc. Bandwidth synthesized radar level measurement method and apparatus
US5614831A (en) * 1995-02-13 1997-03-25 Saab Marine Electronics Ab Method and apparatus for level gauging using radar in floating roof tanks
DE19531540C2 (en) * 1995-08-25 1999-05-27 Krohne Messtechnik Kg Method for measuring the level of a liquid
US5996406A (en) * 1997-05-20 1999-12-07 Motorola, Inc. Advanced signal process for a material storage measuring device
DE69730416T2 (en) * 1997-06-27 2005-09-08 Eads Deutschland Gmbh Level measurement radar
US6075480A (en) * 1998-10-23 2000-06-13 Deliberis, Jr.; Romeo A. Down range returns simulator
ES2310997T3 (en) * 1999-07-02 2009-02-01 Rosemount Tank Radar Ab METHOD AND DEVICE FOR MEASURING THE LEVEL OF LIQUID BY RADAR RADIATION.
SE516597C2 (en) 1999-07-02 2002-02-05 Saab Marine Electronics Method and apparatus for liquid level measurement by radar radiation
EP1083413B1 (en) * 1999-09-07 2003-04-23 Endress + Hauser GmbH + Co. KG Device for measuring the level of a product in a container
KR20020050830A (en) * 2000-12-22 2002-06-28 신현준 Microwave level measurement apparatus and method for Blaster Furnace
ATE294401T1 (en) * 2001-04-20 2005-05-15 Krohne Messtechnik Kg PROCESSING METHOD FOR A FREQUENCY SIGNAL
SE0200792D0 (en) * 2002-03-18 2002-03-18 Saab Marine Electronics Horn Antenna
WO2004005959A1 (en) * 2002-07-08 2004-01-15 Saab Marine Electronics Ab Level gauging system
SE0202491D0 (en) * 2002-08-22 2002-08-22 Saab Marine Electronics Level gauging and alarm system
US7204140B2 (en) * 2004-07-01 2007-04-17 Saab Rosemount Tank Radar Ab Radar level gauge flange
US7525476B1 (en) * 2007-11-13 2009-04-28 Rosemount Tank Radar Ab System and method for filling level determination
US8009085B2 (en) * 2009-02-17 2011-08-30 Gk Tech Star Llc Level gauge with positive level verifier
DE102011084355A1 (en) * 2011-10-12 2013-04-18 Endress + Hauser Gmbh + Co. Kg circuitry
US9541444B2 (en) * 2014-04-01 2017-01-10 Rosemount Tank Radar Ab Self-diagnosing FMCW radar level gauge
KR102339939B1 (en) * 2021-08-05 2021-12-16 주식회사 가가 80GHz class low power 1D level sensor for high dust environment capable of observing inside enclosed structures
DE102021134451A1 (en) 2021-12-23 2023-06-29 Krohne S.A.S. Device for measuring distance and method for checking the function of a device for measuring distance

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044355A (en) * 1973-11-20 1977-08-23 Saab-Scania Aktiebolag Measurement of contents of tanks etc. with microwave radiations

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3428815A (en) * 1965-10-22 1969-02-18 Electronic Ind Eng Inc Distance measuring system using infrared ring-around oscillator with a reference loop having a light conducting rod
US4360812A (en) * 1967-03-16 1982-11-23 The United States Of America As Represented By The Secretary Of The Army FM-CW Fuze
US3888588A (en) * 1972-02-03 1975-06-10 Granqvist Carl Erik Instrument for measuring distance
US4044353A (en) * 1976-08-06 1977-08-23 Simmonds Precision Products, Inc. Microwave level gaging system
US4106020A (en) * 1977-07-21 1978-08-08 Rca Corporation FM-CW Radar ranging system
US4245221A (en) * 1979-04-27 1981-01-13 Rca Corporation FM-CW Radar ranging system with automatic calibration
DE3215847C2 (en) * 1982-04-28 1985-10-31 MTC, Meßtechnik und Optoelektronik AG, Neuenburg/Neuchâtel Timing method and apparatus for its implementation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044355A (en) * 1973-11-20 1977-08-23 Saab-Scania Aktiebolag Measurement of contents of tanks etc. with microwave radiations

Also Published As

Publication number Publication date
DK161261C (en) 1991-12-30
AU569158B2 (en) 1988-01-21
FI852115A0 (en) 1985-05-28
NO166345C (en) 1991-07-10
EP0167505B1 (en) 1990-01-31
KR900004883B1 (en) 1990-07-09
JPS60262080A (en) 1985-12-25
BR8502625A (en) 1986-02-04
NO852181L (en) 1985-12-02
FI80961C (en) 1990-08-10
SE8402960D0 (en) 1984-06-01
KR860000544A (en) 1986-01-29
MX158486A (en) 1989-02-03
SE8402960L (en) 1985-12-02
NO166345B (en) 1991-03-25
SE456538B (en) 1988-10-10
YU46256B (en) 1993-05-28
US4665403A (en) 1987-05-12
FI80961B (en) 1990-04-30
DE3575782D1 (en) 1990-03-08
DK161261B (en) 1991-06-17
AU4305285A (en) 1985-12-05
FI852115L (en) 1985-12-02
IN164799B (en) 1989-06-03
ES543730A0 (en) 1986-06-01
DK243585A (en) 1985-12-02
ES8608177A1 (en) 1986-06-01
EP0167505A2 (en) 1986-01-08
YU68988A (en) 1990-12-31
DK243585D0 (en) 1985-05-31

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